// Car.prototype.name = 'BMW'
// Car.prototype.lang = 4900
// Car.prototype.height = 1400

// function Car(owner, color) {
//   this.owner = owner
//   this.color = color
// }

// var car = new Car('浪哥', 'red')
// var car2 = new Car('但总', 'black')

// // Car.prototype.name = '红旗'
// // delete Car.prototype.name


// console.log(car);
// console.log(car2.name);